Back Door

Back doors are hidden software tools, often created by software writers. These can be exploited by third parties to bypass security controls
The person who wrote the original software usually builds in a 'back-door' that triggers when the software receives certain commands.
Many software systems have security built into them. For example, some financial software may have passwords and even encryption included to only allow authorised persons to use it. This program would be running on a computer or server.
external image back_468x545.jpgexternal image door.jpg
Definition by Gibran
Source: www.webopedia.com www.teach-ict.com